question_answer

An alkene\['A'\]contains three\[C-C\], eight\[C-H\]\[\sigma -\]bonds and one\[C-C-\pi \]bond.\['A'\]on ozonolysis gives two moles of an aldehyde of molar mass\[44\,\,u\]. \[IUPAC\]name of \[A\]is

A)  but-1-ene                         

B)  but-2-ene

C)  2-methylpropane          

D)  None of these

Correct Answer: B

Solution :

Compound\['A'\]is but-2-ene. \[C{{H}_{3}}-CH=CH-C{{H}_{3}}\xrightarrow{{{O}_{3}}}\] \[C-H\]bonds\[=8\sigma \] \[C-C\]bonds\[=3\sigma \] \[C=C\]bonds\[=1\pi \]